The analogy about light and heavy objects swung at the same speed will generate the same force is totally incorrect. eg. If you swing a feather at 100 mph  and try to hit a golf ball it goes no where. If you swing a 1 pound weight 100 mph then you will have muchhhhh more force.   Also feeling the club head  by making it heavier allows the body weight to be in sync with the club movement. The distance a golfer hits the golf ball is based on his synchronization of...